Electric switch combined with fluid control valve



J. PACIFICO.

May 13, 1952 ELECTRIC SWITCH COMBINED WITH FLUID CONTROL VALVE Filed Aug. 25,-1950 I N VEN TOR. Ja V Zia/I 60 Patented May 13, 1952 UNITED STATES PATENT OFFICE ELECTRIC SWITCH COMBINED WITH FLUID CONTROL VALVE 2 Claims.

This invention relates to an electrical gas stove pilot arrangement.

It is an object of the present invention to provide an electrical gas stove pilot arrangement wherein automatically as the gas valve is turned by a special button arrangement disposed thereon as an attachment therefor, an electric circuit is closed to operate a pilot and to cause a flash between the points thereof, and wherein upon release of the gas valve, the pilot circuit is automatioally broken.

Other objects of the present invention are to provide an electrical pilot arrangement for gas stoves which is of simple construction, inexpensive to manufacture, has a minim-um number of parts, easy to install upon the gas stove, compact, reliable and efficient in operation.

For other objects and for a better understanding of the invention, reference may be had to the following detailed description taken in connection with the accompanying drawing, in which Fig. l is a top plan view of a gas stove with a diagrammatic showing of the wiring and of the operating switch member connected to the gas valves.

Fig. 2 is an enlarged vertical sectional view taken on line 2-2 of Fig. 1.

Fig.3 is an enlarged plan view of the valve with the operating switch button connected thereto and shown in section.

Fig. 4 is a transverse sectional view taken on line 4-4 of Fig. 3 with the operating switch member out of contact with the gas valve handle.

Fig. 5 is a view similar to Fig. 4, but with pressure applied to the operating switch member so that contact is effected through the valve.

Referring now to the figures, represents a gas range having ring burners II and an oven burner [2. This gas range is supplied from a pipe I3 with gas and this pipe is connected with a control pipe [4 that extends across the front of the gas range.

In this control pipe l4 there are a plurality of laterally spaced valve elements [5 for controlling the supply of gas to the individual and respective burners II and [2. This gas valve is constituted of the standard parts and can be turned on or off or to positions therebetween so that the flow of the gas can be adjusted to the difierent heating requirements. Valve I5 has a rotatable member l6 therewithin that projects outwardly and carries a hand knob I! with an axially extending projection l8 thereon.

According to the present invention, there is attached to the knob I! a slidably fitted knob I9 having enlarged opening 2| therein receiving the projection 18. Accordingly, there is a loose fit of the knob I9 with the projection l8. Between this knob l9 and the knob I! there are connected a plurality of balancing springs 22 which will urge the knob 19 toward a neutral position so that the projection 18 is out of engagement with a contact 23, as shown in Fig. 4. Contact 23 is made secure upon the knob H) by a screw 24. As the knob 19 is turned, the contact 23 is engaged in the manner as shown in Fig. 5 with the projection I8 whereby to close the electric circuit 25. This circuit 25 includes primary winding 26, plug 21 which may be secured to any wall receptacle, wire 28 leading from the plug 21 is grounded on the gas range Ill.

The transformer also has a secondary circuit 29 that includes winding 3|. oven spark points 32 and 33 lying adjacent oven heater element 12 and spark points 36 and 31 for the range II. The spark points 36 are confined within a round receptacle 38, Fig. 2, which has sleeves 39 and 40 extending in opposite directions toward the respective gas rings ll of a pair. As any one of the gas valves are turned, a spark will jump the points so as to ignite any gas which may linger near to them.

Over each pair of rings II is a plate 4| having holes 42 therein through which flames from the gas rings II project. Brackets 43 are connected to the top of the range and the plate 4| is secured to the upper ends of these brackets by fastening screws 44. The brackets are connected to the top of the range by fastening screws 45. The gas rings II are supported upon insulating blocks 46. The brackets 43 may also be of insulating material. The receptacle 38 is supported upon an insulating block 41 and the knobs I9 are also of insulating material so that the user of the gas range does not come in contact with the electrical circuit.

It should now be apparent that there has been provided an electrical arrangement for igniting gas ranges which is simple to construct and wherein automatically by the simple turning of the knob which turns the valve, the ignition of the gas burner is effected. It will be seen that this arrangement merely requires the attachment to the valves of a simple insulating knob and the springs 22 on the standard gas valve knob [1. Small holes can be drilled into the knob I! to receive the ends of the respective springs 22 in a tight fitting manner. The springs 22 automatically return the knob I9 to a neutral position, as shown in Figs. 3 and 4, with the contact 23 free of the projection l8.

While various changes may be made in the detail construction, it shall be understood that such changes shall be within the spirit and scope of the present invention as defined by the appended claims.

I claim:

1. In combination, a fluid control valve having a turn knob, an electric switch turn knob, one of said knobs having a projection thereon,

the other of said knobs having a recess therein for receiving the projection, said recess being larger than the projection to allow limited relac tive movement between said other of said knobs and said projection, balance spring meanstqone necting said knobs and normally maintaining the projection positioned in said: otherrknob, said other knob having a contact element engageable, with the projection when one of said knobs is turned to turn the other of said knobs.

2. In combination, a fluid control valvehaving a turn knob with a projection thereon, an electric switch turn knob having a recess therein for receiving the projection upon the turn knob of the valve, said recess being substantially larger than the projection to allow limited relative movement between the switch turn knob and the projection, balance spring means connecting the switch turn knob with the turn knob of the valve and normally maintaining the projection positioned in the switch turn knob, said switch turn knob having a contact element engageable with the projection when the switch turn knob is turned to turn the valve knob.

JOHN PACIFICO.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,271,822 Zam July 9, 1918 2,152,531 Browning Mar. 28, 1938 FOREIGN PATENTS. Number Country Date.

440,429 Great Britain Dec. 27, 1935 

